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inn [45]
3 years ago
9

20questions.%7D" id="TexFormula1" title="\text{This is for a school project. I just need help on these two questions.}" alt="\text{This is for a school project. I just need help on these two questions.}" align="absmiddle" class="latex-formula">
What shape do ice crystals have? How does hydrogen bonding cause that shape?

\text{Thank you!}
Chemistry
1 answer:
BigorU [14]3 years ago
5 0

Answer:

Water molecules in the solid state, such as in ice and snow, form weak bonds (called hydrogen bonds) to one another. These ordered arrangements result in the basic symmetrical, hexagonal shape of the snowflake.

Explanation:

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An organic chemist measures the temperature T of a solution in a reaction flask. Here is the result T = 17. degree C Convert T t
garik1379 [7]

Answer : The temperature in Kelvin is, 290 K

Explanation :

S.I : It is known as the international System of Units. It is defined as a scientific method to express the magnitude of the several basics units.

There are seven basic units in the system from which the other units are derived.

The seven base unit are, meter for length, kilogram for mass, second for time, ampere for current, kelvin for temperature, mole for amount of substance and candela for intensity.

The conversion used for the temperature from degree Celsius to Kelvin is:

K=273.15+^oC

where,

K = temperature in Kelvin

^oC = temperature in centigrade

As we are given the temperature in degree Celsius is, 17

Now we have to determine the temperature in Kelvin.

K=273.15+^oC

K=273.15+(17^oC)

K=290.15K\approx 290K

Therefore, the temperature in Kelvin is, 290 K

5 0
3 years ago
Answer this question and you’ll get 20 points Explain how energy is transfers using the major forms of energy in a circuit descr
svetlana [45]

Answer:

When the fuel is burnt, the hot gas rushes out of the rocket due to the great heat and pressure produced by the release of chemical energy in burning. Energy transfer is the movement of energy from one location to another. Energy transformation is when energy changes from one type to another.

Explanation:

4 0
3 years ago
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In the UNBALANCED chemical reaction for the combustion of acetylene (used in welding torches), determine at standard temperature
kiruha [24]

Answer:

2 C2H2 + 5 O2 = 4 CO2 + 2 H2O

I've checked this multiple times this should be it

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3 years ago
A children's liquid medicine contains 100 mg of the active ingredient in 5 mL. If a child should receive 150 mg of the active in
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Answer:

Explanation: A children's liquid medicine contains 100 mg of the active ingredient in 5 mL . If a child should receive 150 mg of the active ingredient, how many milliliters

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